USB peripheral controller
12
Connect Wi-Wave Hardware Reference, Rev. A, 2/2008
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U S B p e r i p h e r a l c o n t r o l l e r
The module uses a peripheral USB controller to interface to either a full speed or
high speed USB 2.0 link. The link first tries to communicate to the host system
board at the high speed USB rate (480 Mbps). If not successful, the link reverts to
the full speed USB rate (12 Mbps). This link is used for all communication between
the module and the host system board.
Note:
The Digi Connect Wi-Wave module does not support low-speed USB
connections.
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8 0 2 . 1 1 b / g m o d e s a n d c h a n n e l s
The Digi Connect Wi-Wave transmits and receives data at up to 11 Mbps when
operating in 802.11b mode and up to 54 Mbps when operating in 802.11g mode. It
supports these 802.11b/g channels:
Channels 1 through 11 for North America (2.401 GHz–2.473 GHz)
Channels 1 through 13 for Europe (2.401 GHz–2.483 GHz)
Channels 1 through 14 for Asia (2.401 GHz–2.495 GHz)
Channel
allocations
Channel
Center frequency
(MHz)
Frequency spread
(MHz - MHz)
1
2412 2401
-
2423
2
2417 2406
-
2428
3
2422
2411 - 2433
4
2427
2416 - 2438
5
2432
2421 - 2443
6
2437
2426 - 2448
7
2442
2431 - 2453
8
2447
2436 - 2458
9
2452
2441 - 2463
10
2457
2446 - 2468
11
2462
2451 - 2473
12
2467
2456 - 2478
13
2472
2461 - 2483
14
2484
2473 - 2495
